It starts in a boxing gym with people booing and yelling come on get him with a scene that screams amateur boxing. On the other hand this is from the end of an era, where plot was important. When the drama of the movie could not be enhanced a time when the acting was more important than the look.
The character Rocky Balboa in essence embodies the Grind side of our magazine even with win; he immediately suffers a loss. As the promoter explains the money he gets from the winnings, he continues home to drink a sip of beer from the fridge feed his pets and fight of swelling with a hand full of ice. This resonates grind, it screams to everyone who wakes up works hard and somehow goes to sleep with less than when they woke.